To solve the problem that a conventional guardrail made of a metal plate is used for securing the safety of a pedestrian and for preventing a serious vehicle accident by being provided on the border between a roadway and a sidewalk, and that precious human lives are lost because of serious vehicle accidents which occur frequently.

A rubber plate 1 is attached to the guardrail 2 made of a metal plate, and the stiffness, thickness, and shape of the rubber plate 1 can be freely changed in accordance with its application by making use of properties of rubber to the possible greatest extent. Because of this, before the impact of the vehicle is applied to the metal plate of the guardrail at the time of a vehicle accident, resilience is also applied because of the absorptive force of the rubber plate. Thus, the impact to a passenger can be relaxed. Since the strength of the guardrail is increased, a serious vehicle accident which makes precious human lives lost can be reduced.